Take-up for sewing-machines



(No Model.) v

A! v. ABERCROMBIE.

. TAKE UP FOR SEWING MACHINES. No.268,446. Patented Dec; 5,-1882.,

jig/611% N. PEYERS, Pinko-Lithograph". Wuhington. n. c

. UNITED STATES PATENT OFFICE.

ALEXANDER V. ABERCROMBIE, OF BRIDGEPORT, CONNECTICUT.

TAKE-UP FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 268,445, dated December 5, 1882,

i Application filedApril 18, 1882.

tield and State of Connecticut, have invented certain new and useful Improvements in Take- Up Mechanism for Sewing-Machines, of which the following is a specification, reference being had therein to the accompanying drawin gs.

My invention relates to take-up mechanism for sewing-machines, and has for its object to provide a device for the self-threading of such a mechanism; and,with theseendsin view, my invention consists in the details of construction and elements of combination which will be hereinafter fully set forth, and then specifically designated bythe claim.

In order that those skilled may more fully understand the construction and operation of my improvement, I will proceed to describe the same in detail, referring by letters to the and adapted for any take-up mechanism.

Similar letters denote like parts in the several figures of the drawings.

A is the roll-eyelet guard terminating at one end in a hook, a, which is of a slight spring nature, and B the roll-eyelet secured between the said guard and the lever-arm C.

' This lever-arm and guard I make in one piece (No model.)

sink 1), fold the guard A over, so that the hook on will fit within the notch or depression 0, and secure the parts in position bya screw or pin, 11, Fig. 2, passed through the eyelet. The hook or fits into the notch or depression 0 in such a manner as not to project or form any obstruction to the thread, while at the same time the latter is confined as against slipping back underneath the hook.

One of the principal features of my invention'is that by the arrangement of the parts, as set forth, a bridge, D, is formed directly in front of the roll-eyelet B, thus doing away with the necessity of a pin or screw at that point, while at the same time the rear end of the guard A is left free to operate.

I am enabled to apply my device to take-up mechanism arms as at present constructed by making the roll-eyelet guard A in a separate piece, as shown at Figs. 4 and 5, and applying it to the lever-arm C in the manner shown at Fig. 1,and the hook at can be readily adapted to fit into the hole 0, which latter is found in all the take-up-mechanism arms as at present constructed.

The operation of my device is as follows:

The thread is graspedby both hands and forced underneath the spring'hook a, thus performing the operation with a single movement. Having thus described my invention, What I claim as new, and desire to secure by Letters Patent, is

In a take-up mechanism for sewing-machine the roll-eyelet guard A and lever-arm 0, made 

